GpioPin.ValueChanged 事件

定義

命名空間:

Windows.Devices.Gpio

發生于一般用途 I/O 的值 (GPIO) 針腳變更時，可能是因為將針腳設定為輸入時發生外部輸入，或是當將針腳設定為輸出時，將值寫入釘選。

// Register
event_token ValueChanged(TypedEventHandler<GpioPin, GpioPinValueChangedEventArgs const&> const& handler) const;

// Revoke with event_token
void ValueChanged(event_token const* cookie) const;

// Revoke with event_revoker
GpioPin::ValueChanged_revoker ValueChanged(auto_revoke_t, TypedEventHandler<GpioPin, GpioPinValueChangedEventArgs const&> const& handler) const;

public event TypedEventHandler<GpioPin,GpioPinValueChangedEventArgs> ValueChanged;

function onValueChanged(eventArgs) { /* Your code */ }
gpioPin.addEventListener("valuechanged", onValueChanged);
gpioPin.removeEventListener("valuechanged", onValueChanged);
- or -
gpioPin.onvaluechanged = onValueChanged;

Public Custom Event ValueChanged As TypedEventHandler(Of GpioPin, GpioPinValueChangedEventArgs) 

事件類型

TypedEventHandler<GpioPin,GpioPinValueChangedEventArgs>

Windows 需求

應用程式功能

lowLevel

另請參閱

• GpioPinValueChangedEventArgs